Dishwashing machine



july 20 1926..

W. B. BARLEY DIsHwAsHING MACHINE Filed oct. 14. 1922 4 Sheets-Sheet 1 u INVENTR. PVL am-fff l July 20 i 1926.

. 1,593,417 W. B. BARLEY DI SHWASHING MACHINE Fiied oct. 14, 1922 4 sheets-sheet 2 5ATToRNEY r l W. B. BARLEY DISHWASHING MACHINE Filed Oct: 14. V1922 4 Sheets-Sheet 5 -/,b-ATTORNEY v July 20 1926. 11,593,417

W. B. BARLEY DIsHwAsHING vMACHINE Filed Oct. 14, 1922 4 Sheets-Sheet 4 INVEN'TOR.

t Patented July 20, 19,26.

` Figure 2 1s a plan view rsgim UNITED STATES i'PAT,nur` ori-fics.

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' msnwnsimxe momma Application October 14,1922. Serial No. 594,577.

My invention relates to a dish washing machine,.more particularly to thegenera type of machine involvingv a stationary water containing tub, and a dish rece tacle or' basket frame that is movable bac and forth throughthe water in the tub, and it has for its purpose to provide mechanism which can be readily controlled, andenables performing a vwashing operation in less `time and more eiiiciently than heretofore.

'.More specifically, a principal pur ose of the improvement is to provide a mec anism4 for readil lowering or'elevating a basket of dishes into or lout of the tub, as well as a simple, economical, and easily controlled mechanism for retaining the basket in its uppermost position when out of the tub.

Another 'object of thee) improvement is to aord a convenient and practical mechanism for guiding a dish receptacle properly as it is lowered into-the tub, so as to prevent its coming in contact with any obstruction'and to insure positioning it accurately' on the movableframe. v

A further. purpose of the invention is toadord a motor driven mechanism involving gearing which includes a locking means that can be disconnected so asto release the movable frame from the motor drive and permit it to be operated by liand'in an emergency, such disconnecting mechansm involving but fewparts end being exceedingly simple in its construction.

The invention also includes certain 'other` features of improvement and advantages, all of which w1ll appear .clearly from the yfollowing description in con'unction with the accompanying drawings, t e novel character'istics being pointed out in the lclaims following thespecification.

In the drawings: t

Figure 1 is a 'side view of a machinef incorporating a preferred embodiment of my invention, and showing a, portion of the vtub broken away, the dish receptacle appearing inelevatedposition; `..l Y" of the same with Y parts broken away;

' :Figure motor drive disconnected, to permitv hand "Figure 3- is-a transverse section with the :dish receptacle in elevated position;

Figure 4is a side elevation illustrating -the position vof the parts when operated by motor power; l

5 1s a s1m1lar lview, showing the operation of the machine; A

* to the supports V5, and slidin whichin turn are pivoted at" to the bot- 7 is a similar view, withthe crank rinsing, as usual in this class of machinery, f

and arranged within the-tub for oscillatory back and forth movement is a supporting lframe in which the dish basket or rece tacle placed. The oscillatory supportin ame lncludes a bottom 2 and suitable angers which are pivoted and lswing about'the cen` ters 3, the frame being oscillated by mecha- .-nism that will be described presently..

In order to'insure iiproperly positioning a dish basket on the bottom of the frame, and

1preventits Acomingin contact with an obstruction as it enters the tub, I- emp oy a 'guiding means that extends from the top of the tub downwardly and inwardly toward the frame, and acts to engage4 the bottom of the dish basket as it is lowered and direct it to a central position on the bottom of the frame. This 'ding means may be of varied form,`| but preferably I employ a v series 'of relatively slidable or telescopic connections between the bottom of the frame and thetop of' thetub. This may be accomplished by rods 4, pivotally connected in tubes 6 Atom of the oscillatory frame. Thus, the telescopic. members ,4 and 6 afford an inclined .guide against which the dish basket engages as it is lowered into the tub. The same purpose can be accomplished b any relativel sliding members connected etween the'tu and the bottom ofthe movable frame, or the guide may be otherwise constructed, not necessarily includin telescopic or relatively sliding members so ong as it has the necessary inclination downwardly and inwardly with reference to the movable dish rece tacle frame and acts to direct a dish bas et tov proper. osition onthe frame.v

A we known and conventional form of and includes upstanding handle portions 9 vment or tilting b by which it can be lifted out of the tub, and

1n order to conveniently elevate or lowerthe basket, or move it lengthwise of the tub from one compartment to the other while loaded with dishes, I employ the mechanism that will now be described.

10 designates a track suitably arranged above the tub, and mounted for travel on said track is a carrier that includes a-hous- Ving 11 connected to a bracket 12 which has journalled thereon wheels 13 travelling on the track 10, and a roller 14 which engages the underside of the stationary support 15 and is prevented against downward movea guard 16.

J ournalledin t e housing 11 is an elevating device` preferably in the form of a conical drum having a handle 17 by which it is rotated. Said conical drum is providedvwith a spirally arranged groove 18 which terminates at the small end of the roll in a cutaway or deepened portion 19, thereby aiording a retaining portion 20 which is of reduced'diameter, as appears in Figure 3, and is so arranged that its entire cable engaging surface isl eccentric with reference' to the rotary axis of the elevating device. 21 designates, a cable, one end of which is connected to the large end of the elevating drum while the op osite end is connected to a suitable rod 22 w 'ch is adapted to engage the handles 9 of the basket.

Assumin that the basket is in its lowermost position inthe tub, when desired to 'elevate it, the rod 22 is lowered and'enga ed with the handles 9. The handle 17 is t en turned, causing the cable 21 to wind upon the groove in the lifting drum until the uppermost osition is reached. VAt this pomt, the ca le 21 engages the reduced reover an comphsli taining portion 20'of the drum, the latter being thenlocated below the rotary axis of the roll, and the weight ofthe basketacts to hold the drum against further rotation and thus automatically locks itself in elevated position. lTo lower the basket, the handle 17 is turned in a reverse direction, very slight preu're being needed to overcomethe weight .of the basket and elevate theretainng portion 20 to its highest point above the rotary the weight ofthe basket carries it downwardly into the tub, and handle 17 being held suicientl to preventA excemvely fast mitin fhthmstt i' i en t e `t is in its uppermost position, as illustratecin Figuras land 3, the carrier can be moved lengthwise of the tub on the track 10, so as to bring the basket desired compartment,and to acthis movementneadil the housin 11 is provided with a han e 23 at one si e thereof, Itis desirable to`hol'dthe axis of the roll, whereupon.

vafstaan housing 1l, with the dish basket, in properly centered position above the selected compartment of the tub, and to this end I provide the support 15 with stationarily located sprin -controlled locking pins 24 arranged to e gage a cooperating recess 25 in the top of the housing 11. The action of the pin 24 is sulicient to hold the housin 11 against accidental displacement, althoug it can be disengagedby a sli ht pressure when it is desired to move it alSbng the track.

In order to operate the basket frame, the latter has connected thereto a lever 26, pivoted on the bearing 3, connected wit a 4motor drive by means that readily permits its being disconnected in case it is desired in an emergency to operate the basket frame by hand, as for instance, when the motor is "disabled, To this end, the lever 26 is driven by a crank arm 27 which is likewise pivoted on the bearing 3, .concentrically with the lever 26. The crank arm 27 and lever 26 are independently movable, and adapted to be quickly. connected for unitary movement when the motor is in operation.r To effect this, one of the arts, as for instance the lever 26, is slotte or cut away at its end as at 28 to receive a locking bolt 29, which is mounted on the other part or crank arm 27 and slidable thereon in a slot 30, while 31 designates a wing nut for tightening the bolt 29. By loosening the wing nut 31 and slidinghthe bolt endwise, the parts can be shifted from the position shown 1n Figure 4 to that shown in Figure 5, whereby the lever 26, as well as the basket frame, is movable independently of the crank arm 27 and motor drive. To accomplish such hand operation,

a hand lever 32 is provided which is normally in horizontal position, and can be thrown to an upright position and moved into locked relation with the basket frame, as shown in Figure 5. For this purpose, the, hand lever is slotted at 33, to e pins 34 on the basket han en 35, see lligigure 5 J During ie operation oscillatory frame is moved upwardly to its uppermost position under power, and swings downwardly under the impulse ogravity, thus having a tendency to run ah of e motor' drive during each downward moveof themachine, the f lll ment. To overcome the wearing eect of this lost motion on the driving parts, I employ the followin mechanism. The c arm .27, already described, is slotted at 36 to receive the crank 37, and the crank 37 is formed' integral with gear 38, both said parts bein preferably formed as part of an arbor 39. y making the gear 38 and crank 37 in one piece, I eliminate the possibility of loosening between these parts, which would take 'lace if they key or otherwise arr durab e,qui'et, and practical means for drivwere in two pieces and secured er. 'Die ment described affords a much more ing' the movable frame and does away with While I have describedthe invention with reference to a preferred-practical arrangement, the various features of lmprovement are susce tible of diierent other Aapplica.-

v tions, an the structure shown may be modied without departing-from the fundamental novel of the invention, and this application is intended to cover any such departures or modifications comin within the intent of the improvements or t e scope of the following claims.

\ I claim:Y s p 1. In a ,dish washing machine, the combination witli' a tub, of a suppxorting frame movable back and forth in t e tub, and a' guide arranged within the tub and com, prising a p an' of relatively` slidable members 'connected to the tub and frame respectively.

2. In a 'dish washing machine, the combination with a tub, of'a supporting frame movable back and forth in the tub, means arranged within the tub an comprising a series of downwardly and inwardly inclined relatively slidable members, one end of each of which 1s connected near the top of -the tub while the other end is yconnected at the bottom of the frame.

3. In a motor driven dish washing machine, the combination with a movable frame, of a motor o rated lever pivoted at its central art an connected at its lower end to the in its upper end, a crank rod pivoted con'- centrically with the lever, and havin a slot re in with said recess, and a. ocking bo t slidale recess in the lever'.

In witness whereof, I

have 'hereunto signed my name. c

B. BARLEY. e

iding 3o' e, the lever having aerecess in said slot into or out ofthe 45 

